“That means that there’s someone else in the heath who can see him—someone with a cell phone or a two-way pager.”

“Exactly,” said Shamron. “But you’re never going to find him. He’s already gone by now. Your only option is to follow the spotter.”

Navot looked at the screen. “I don’t have the resources to follow four men.”

“You don’t have to follow four. You only have to follow one. Just make sure you pick the right one.”

“Which one is that?”

“Eli has good instincts about these things,” Shamron said. “Let Eli decide. And whatever you do, make sure you get another beacon on Gabriel before he leaves Highgate. If we lose him now, we might never find him again.”

Navot reached for his radio. Shamron started pacing again.

Gabriel jettisoned the Browning and the radio in a stand of trees at the center of the heath, then crossed the levee between the Highgate Ponds and made his way to Millfield Lane. Taped to the nearest lamppost was a snapshot of a dark blue BMW station wagon. The car itself was fifty yards farther along the lane, outside a large freestanding brick house with a string of smiling reindeer on the lawn. Gabriel opened the rear hatch and peered inside. The keys lay in plain sight, in the center of the cargo area. He removed them, placed the bags inside, then subjected the vehicle to a thorough inspection before climbing behind the wheel and tentatively turning the key.

The engine started right away. Gabriel opened the glove box and saw a single sheet of paper, which he examined by the ambient light of the dashboard. Listed on the page was a detailed set of driving instructions—a journey that would take him from Highgate to a headland for the distant reaches of Essex appropriately named Foulness Point. On the passenger seat was a well-thumbed Bartholomew Road Atlas. It was dated 1995 and opened to map number 25. The drop site was was marked with an X. The surrounding waters were labeled in red: DANGER ZONE.

Gabriel slipped the car into gear and eased away from the curb under the watchful gaze of the smiling reindeer. He turned right into Merton Lane, just as they instructed him to do, and headed east along the edge of the Highgate Cemetery. In Hornsey Lane, a male pedestrian in a shoddy mackintosh raincoat stepped in his path. Gabriel put his foot hard on the brake, too late to avoid a minor collision that sent the pedestrian tumbling to the asphalt. The man bounced quickly to his feet and pounded his fist on the hood in a rage; then, after reaching briefly beneath the passenger side wheel well, he stormed off. Gabriel watched him go, then made his way to the Archway Road. He turned left and headed for the M25.